From d34d24a3f8833ea8bd07e4bd9737a9598d7f2f13 Mon Sep 17 00:00:00 2001
From: sascha <sascha@automation1.local>
Date: Wed, 8 Apr 2026 21:43:04 +0200
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+# 🛡️ Backup Monitor – The Sentinel
+
+Zentrales Backup-Monitoring-Dashboard für Borgmatic-Backups mit MongoDB Backend, Sentinel UI, Prometheus Metrics und Webhook-Alerts.
+
+## Features
+
+- **Sentinel Web-UI** – Dashboard, Alert Center, Host Grid, 30-Tage Kalender-Heatmap
+- **Prometheus `/metrics`** – Scrape-fähig für Grafana Dashboards
+- **Uptime Kuma Push-Forwarding** – Single Point of Contact (Borgmatic → Monitor → Kuma)
+- **Webhook Alerts** – Error/Stale Events an n8n, Telegram, etc.
+- **Auto-Register** – Hosts registrieren sich automatisch beim ersten Push
+- **90 Tage Retention** – MongoDB TTL-Index, automatisch
+
+## Stack
+
+- Python 3.12 / Flask / Gunicorn
+- MongoDB 8
+- Tailwind CSS, Material 3 Design Tokens, Glassmorphism
+
+## Deployment
+
+Läuft als Teil des `monitoring` Stacks auf `10.1.1.111:9999`.
+
+```yaml
+backup-monitor:
+  build: ./backup-monitor
+  ports:
+    - "9999:9999"
+  environment:
+    - MONGO_URI=mongodb://backup-mongo:27017
+    - STALE_HOURS=26
+    - API_KEY=<optional>
+    - WEBHOOK_URLS=<kommasepariert>
+    - WEBHOOK_EVENTS=error,stale
+```
+
+## Borgmatic Integration
+
+Borgmatic pusht nach jedem Backup via `after_backup` Hook:
+
+```bash
+curl -X POST -H "Content-Type: application/json" \
+  -d '{"host":"<hostname>","status":"ok","duration_sec":123,...}' \
+  http://10.1.1.111:9999/api/push
+```
+
+Template: `roles/borg/templates/borgmatic.yml.j2` im Ansible-Repo.
+
+## API
+
+| Method | Endpoint | Auth | Beschreibung |
+|--------|----------|------|-------------|
+| GET | `/` | ❌ | Web UI |
+| GET | `/metrics` | ❌ | Prometheus Metriken |
+| GET | `/api/summary` | ❌ | Dashboard-Zusammenfassung |
+| GET | `/api/hosts` | ❌ | Alle Hosts mit Status |
+| GET | `/api/history/<host>` | ❌ | Backup-History |
+| GET | `/api/calendar/<host>` | ❌ | Kalender-Heatmap |
+| POST | `/api/push` | 🔑 | Backup-Status pushen |
+| POST | `/api/hosts` | 🔑 | Host hinzufügen |
+| PUT | `/api/hosts/<name>` | 🔑 | Host bearbeiten |
+| DELETE | `/api/hosts/<name>` | 🔑 | Host + History löschen |
+
+🔑 = benötigt `API_KEY` falls gesetzt (Header `X-API-Key` oder `?api_key=`)
+
+## Neuen Host hinzufügen
+
+1. Borgmatic auf dem Host deployen: `./pfannkuchen.sh backup <host>`
+2. Oder manuell über Web-UI: `http://10.1.1.111:9999` → Host hinzufügen
+3. Uptime Kuma Push-URL eintragen (optional)
+4. Host registriert sich automatisch beim ersten Backup-Push